expellers
Low (C2)Technical / Industrial / Formal
Definition
Meaning
Devices, machines, or agents that force something out by pressing or squeezing.
Often refers to machinery used in oilseed processing (e.g., expeller press). Also used for people or entities that remove or eject someone from a place or group.
Linguistics
Semantic Notes
Primarily a technical term. The more common related word is the verb 'expel.' As a noun, 'expeller' is often part of a compound noun (e.g., oil expeller).
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. Slightly higher frequency in American English in industrial/agricultural contexts due to larger scale of such industries.
Connotations
Neutral/technical in both varieties.
Frequency
Very low frequency in general English. Almost exclusively found in technical manuals, industrial reports, or historical/sociopolitical contexts (referring to people).
Vocabulary
Collocations
Grammar
Valency Patterns
[N] expellers of [N] (e.g., expellers of oil)[Adj] expellers for [V-ing] (e.g., hydraulic expellers for extracting juice)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None”
Usage
Context Usage
Business
Rare, except in specific industries like agricultural commodities or machinery manufacturing.
Academic
Found in engineering, food science, and agricultural technology papers.
Everyday
Virtually never used.
Technical
Primary context. Refers to machinery for separating liquids from solids via compression.
Examples
By Part of Speech
verb
British English
- The new regulations expel polluting vehicles from the city centre.
American English
- The school board voted to expel the student for repeated violations.
adverb
British English
- Not applicable (no direct adverb form).
American English
- Not applicable (no direct adverb form).
adjective
British English
- The expeller mechanism requires regular maintenance.
American English
- We need to order more expeller parts for the press.
Examples
By CEFR Level
- This is a machine. It is called an expeller.
- Farmers use expellers to get oil from seeds like sunflower or rapeseed.
- Modern screw expellers are more efficient than the older hydraulic presses, yielding a higher percentage of oil.
Learning
Memory Aids
Mnemonic
Think of an EXPELler as a machine that EXPELs oil from seeds.
Conceptual Metaphor
MACHINERY IS A FORCEFUL AGENT (it expels).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Not to be confused with 'изгнанники' (exiles). 'Expellers' are machines/agents of expulsion, not the people being expelled.
Common Mistakes
- Using 'expellers' to mean 'people who have been expelled' (the correct word is 'expellees').
- Misspelling as 'expelers'.
- Using in non-technical contexts where simpler words like 'presses' or 'machines' would suffice.
Practice
Quiz
In which context is the word 'expellers' most likely to be used correctly?
FAQ
Frequently Asked Questions
An 'expeller' is the agent that does the expelling (e.g., a machine, a government). An 'expellee' is the person or entity that is expelled.
No, it is a low-frequency, technical term. The verb 'expel' is far more common.
Yes, but this is rare and formal. It would mean 'people or entities that expel others,' e.g., 'the expellers of the indigenous population.' In most cases, it refers to machines.
Oil extracted solely by mechanical pressure from an expeller machine, without the use of chemical solvents. It is often marketed as a more natural product.